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Case Tractors Discussion Forum

730 setting valve (tappet) gap - hard question

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Author  [Modern View]

02-23-2021 10:04:54

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According to my book the early 730 had a different camshaft than the latter. The difference was noted on a decal on the valve cover, worn off on mine. There are different settings for each style of camshaft. The picture below from my service manual explains the difference and the settings. My parts book, which is a A906, lists a A23495 as the camshaft number, which doesn't match up to the numbers on the decals in the service book. My tractor serial # is 8220271 which makes it a 1963. The engine serial # is 2036278. On other parts a differentiation is noted at certain serial numbers but nothing is given on this. Over the course of production, it appears there were three models/changes and mine falls in the middle. Other than pulling the camshaft out, is there some way to determine which camshaft I have?

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02-23-2021 11:24:51

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 Re: 730 setting valve (tappet) gap - hard question in reply to Tgrasher, 02-23-2021 10:04:54  
My 730 diesel with engine number 2084123 lists valve clearance as 15 and 25 exhaust on the original valve cover decal. This is a hi-profile sheet metal tractor. Ops manual for the lo-profile series before it lists the same clearances...guess these are what I would use.

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02-24-2021 06:09:21

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 Re: 730 setting valve (tappet) gap - hard question in reply to casecollectorsc, 02-23-2021 11:24:51  
Thank you for the reply, I think you are right on the setting. The weather has moderated and I want to get this tractor fired up to see what other problems await me. The goal is to drive this tractor in a parade this summer.

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